Answer:

Explanation:
The complete question is
How do you calculate the mass of a solid copper cuboid with a density of 9.86 g/cm^3. The dimensions of the cuboid are 10 cm by 3 cm by 5 cm
step 1
Find the volume of the cuboid

step 2
Find the mass
we know that
To find out the mass multiply the density of the solid by its volume
so
