To find the volume of a prism, you can use the formula:
\[ \text{Volume} = \text{Base Area} \times \text{Height} \]
In this case, the base area of the octagonal prism is given as 24 square inches, and the height is 8 inches.
Plugging in the values:
\[ \text{Volume} = 24 , \text{square inches} \times 8 , \text{inches} \]
Calculating the volume:
\[ \text{Volume} = 192 , \text{cubic inches} \]
Thus, the volume of the octagonal prism is 192 cubic inches.