The basic reaction occurring in the cell in which Al₂O₃ and aluminum salts are electrolyzed is Al³⁺ + 3 e⁻ → Al(s). If the cell operates at 5.0 V and 1.0 x 10⁵ amps, and you want to produce 600 pounds of aluminum metal (2.7 x 10⁵ g), how many hours will you need to operate the cell?