The volume of a cylinder is the area of the base circle times the height.
The area of a circle is [tex]\pi r^2[/tex]. Since the diameter is 19.05, the radius will be half that diameter:
[tex]r=\dfrac{d}{2}=\dfrac{19.05}{2}=9.525[/tex]
So, the base area is
[tex]A=\pi(9.525)^2[/tex]
Multiply this by the thickness and you'll get the volume.
