To find the surface area of a right rectangular prism, you can use the formula:
\[ \text{Surface Area} = 2(lw + lh + wh) \]
where \( l \), \( w \), and \( h \) are the lengths of the edges of the prism.
In your case, since all edge lengths are equal to 8 inches, we have:
- \( l = 8 \) inches
- \( w = 8 \) inches
- \( h = 8 \) inches
Substituting these values into the formula:
\[ \text{Surface Area} = 2(8 \times 8 + 8 \times 8 + 8 \times 8) \] \[ = 2(64 + 64 + 64) \] \[ = 2(192) \] \[ = 384 \text{ square inches} \]
Thus, the surface area of the right rectangular prism is 384 square inches.