The surface area \( A \) of a cube can be calculated using the formula:
\[ A = 6s^2 \]
where \( s \) is the length of one side of the cube.
For a cube with a side length of 8 inches:
\[ A = 6 \times (8 , \text{inches})^2 \] \[ A = 6 \times 64 , \text{square inches} \] \[ A = 384 , \text{square inches} \]
Thus, the surface area of the cube is 384 square inches.