Year 12s: what will be the first way you research your future options? >>

SQA 2004 Past Paper (calculation?) question

Hey! I'm going through the 2004 SQA Higher Chemistry paper as revision for my prelim on Thursday, and I've come across a question in the multiple-choice that I don't know how to answer.

5g of copper is added to excess silver(I) nitrate solution. After some time, the solid present is filtered off from the copper(II) nitrate solution, washed with water, dried, and weighed.

The final mass of the solid will be
A - less than 5g
B - 5g
C - 10g
D - more than 10g

I have a feeling it has to do with displacement, but beyond that I'm lost. Can somebody explain to me how to do this please?

EDIT: Just had a thought, can I write out the balanced equation and then find the moles of copper, and then use this for moles of silver, and then mass? or should I do it by some other method?