Parallel plate capacitor and charge density

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1. Homework Statement
A parallel plate capacitor with A=125 cm2 and d=1.25 mm is charged to a potential difference of 10.0 V. What is the charge density on each plate?

2. Homework Equations

$$V = \frac{{\sigma d}}{{\varepsilon _0 }}\,\,\,\, \Rightarrow \,\,\,\,V\varepsilon _0 = \sigma d\,\,\,\, \Rightarrow \,\,\,\,\sigma = \frac{{V\varepsilon _0 }}{d}$$

3. The Attempt at a Solution

Plugging in numbers, I get 8.5*10-8C/m2. But I never used the Area. My units seem to work. Did they throw in irrelavant data? Shouldn't I only need Area if I want total charge?

Should my answer be half of what I computed, because it is divided between 2 plates?
1. Homework Statement

2. Homework Equations

3. The Attempt at a Solution

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Hootenanny
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