Calculate Thickness of Copper Plate | Density and Mass Formula

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The discussion focuses on calculating the thickness of a copper plate with a radius of 0.175 m and a mass of 96.1 kg. Using the density of copper, which is 8.92 x 10^3 kg/m^3, participants confirm that the thickness can be derived from the formula: thickness = mass / (density × area). The area of the plate is calculated as 0.0962 m², leading to the conclusion that the thickness can be determined by dividing the volume (mass/density) by the area.

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Aflat circular plate of copper has a radius of .175m and a mass of 96.1 kg. What is the thickness of the plate? Answer in units of m.

I know that the density of copper is 8.92(10^3kg/m^3) and the area of the plate is .0962m^2, and i don't see how the thickness is related with the mass. maybe mass/density = volume or something like that
 
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Since you have the area of the plate, think about what volume is for the circular plate. Area of the base X height of the plate. you are trying to solve for the height of the plate.
Density = mass/volume
You are given density and mass, so you can solve for volume. By cancelling unit, you are given a volume in m^3
 
Last edited:
so your saying its 96.1(mass)/8.92(density)=volume then volume/area gives me my answer?
 
yep i got it right thank you
 

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