A cube has 6 equal square faces. Area of one face = 42 × 42 = 1764. Total surface area = 6 × 1764 = 10584 square cm. Total surface area means the combined area of all outside faces. A cube has 6 equal square faces, so after finding one face area, multiply by 6. The answer is in square units, so the correct choice is 10584 cm².