The volume \( V \) of a cube is calculated using the formula:
\[ V = s^3 \]
where \( s \) is the side length of the cube.
For a cube with a side length of 1.5 cm:
\[ V = (1.5 , \text{cm})^3 = 1.5 , \text{cm} \times 1.5 , \text{cm} \times 1.5 , \text{cm} = 3.375 , \text{cm}^3 \]
Therefore, the volume of the cube is \( 3.375 , \text{cm}^3 \).