Can somebody please explain how to do the following question, I am struggling to get started and also don't know why it is asking for an area as opposed to a volume.

1.(i). Calculate the area of the ellipsoid (x^2/4) +(y^2/4)+z^2=1 that lies above the xy plane using the parameterisation:

r(θ,φ)=(2cosφsinθ, 2sinφsinθ, cosθ).