Answer:
37.5 cm^2
Explanation:
Find the area of one square and mulitply it by six to get the total surface area
2.5 x 2.5 = 6.25
6.25x6 = 37.5
The total surface area of the cube is 37.5 cm^2
(dont forget it's squared instead of cubed because we're finding the area, regardless if it is from a 3d shape or not)