Answer: 433.5 square inches of wrapping paper is needed to cover the box.
Explanation:
Since we have given that
Length of cube shaped gift box = 8.5 inches
We need to wrap that gift box for this we need how much square inches of wrapping paper.
As we know the surface area of cube = 6a²
Here, a = 8.5
so, Area of cube would be

Hence, 433.5 square inches of wrapping paper is needed to cover the box.