While recording his debut album in 2004, Songz released multiple mixtapes under the alias Prince of Virginia. One of the mixtapes featured an "answer track" to R. Kelly's "Trapped in the Closet", entitled "Open the Closet". The song gave Songz some notoriety. His debut album, I Gotta Make It was released on July 26, 2005. It debuted at #20 on the Billboard 200, selling 40,000 copies in its first week of sales. It has sold 300,000 records in the US. Songz's debut single, Gotta Make It, featuring Twista, was released in March 2005 and reached #87 on the Billboard Hot 100 and #21 on the Hot R&B/Hip-Hop Songs. It garnered success in the R&B/urban community but failed to make a mark in mainstream music. The album's second and final single, Gotta Go, was released in July 2005 and reached #67 on the Hot 100 and #11 on the Hot R&B/Hip-Hop Songs chart, becoming even more successful than his debut single in the R&B/urban community and in the mainstream community. After promotion for his debut concluded, he was featured on the lead single from Twista's fifth album, The Day After. The single, "Girl Tonite", reached #14 on the Hot 100 and #3 on the Hot R&B/Hip-Hop Songs chart, becoming a huge hit.  In mid-2006, Songz began work on a follow-up album to his debut with longtime collaborator Troy Taylor and also employed successful Bryan-Michael Cox, Danja, Stargate and R. Kelly to help create the album. Trey aimed for the album to be more mainstream-oriented than his debut album. His second studio album, Trey Day, was released on October 2, 2007. The album reached #11 on the Billboard 200, selling 73,000 copies in its first week. It has since sold 400,000 records in the US, becoming his second album not to be certified by the RIAA. The album was going to be released on May 8, 2007, but was continually delayed in order for a successful single to precede the album, as the lead single failed to impact charts.  His second album was preceded by the lead single, "Wonder Woman", which was released in February 2007. It reached #54 on the Hot R&B/Hip-Hop Songs chart, but failed to impact the Hot 100. Because of the single's failure, his second album was delayed from May 2007 to October 2007. The album's second single, "Can't Help but Wait", was released in August 2007 and was released to promote his second album and the film Step Up 2 the Streets soundtrack as a single for it. The single reached #14 on the Hot 100, and #2 on the Hot R&B/Hip-Hop Songs chart. It became Songz's first Top 20 hit on the Hot 100, and helped to boost his second album's sales. The single was also nominated for Best Male R&B Vocal Performance at the 2008 50th Grammy Awards. The third single from the album, "Last Time", was released in January 2008 and reached #69 on the Hot 100, and #9 on the Hot R&B/Hip-Hop Songs chart. The fourth and final single from the album, "Missin' You", was released in May 2008, but failed to chart completely. In mid-2008, Songz was nominated for a BET Award for Best Male R&B Artist but did not win the award.

Answer this question "How many copies of album were released?" by extracting the answer from the text above.
It has since sold 400,000 records in the US,