Flux through a cylindrical wedge surface

[Rombus]

Homework Statement

If vector A=(2x,-z^2,3xy), find the flux of A through a surface defined by ρ<br /> =2, 0&lt;\phi&lt;\pi/2, 0&lt;z&lt;1

Homework Equations

divA?

The Attempt at a Solution

Can I use divergence here?
This is a closed surface correct? Is this is a cylindrical wedge?
Also do I need to convert the vector field to cylindrical form? Or the defined surface to rectangle form?

If I used divergence do I divide my answer by 4 since the wedge is a 1/4 of the cylinder?

Thanks

 

[Rombus]

Is this question in the wrong forum? Any help would be appreciated.