Answer:
1320336992.2512 m²
1320.33 kilometers or 509.79 miles
Step-by-step explanation:
Energy transferred by the sun

Energy required by the United States is
(assumed)
Power

Area

Area of the solar collector would be 1320336992.2512 m²
Converting to km²


Converting to mi²


Each side of the square would be 1320.33 kilometers or 509.79 miles