 The 2008–09 Copa del Rey final was held at a football stadium which as a seating capacity of what?
2008–09 Copa del Rey: The 2008–09 Copa del Rey was the 107th staging of the Copa del Rey. 2008–09 Copa del Rey:  The competition started on August 23, 2008 and concluded on May 13, 2009 with the final, held at the Mestalla Stadium in Valencia, in which Barcelona lifted the trophy for the 25th time in their history with a 4–1 victory over Athletic Bilbao, who qualified for the third qualifying round of the 2009–10 UEFA Europa League. Mestalla Stadium: Mestalla Stadium (Spanish: "Estadio de Mestalla" ] , ] ) is a football stadium in Valencia, Spain. Mestalla Stadium:  The stadium is the home ground of Valencia Club de Fútbol and has a capacity of 49,500 seats.
49,500