Question

how does the area of a plan mirror relate to the size, location, and orientation of a image, if any. and why?

Answer 1

Area of a plane mirror has no relation with the size location or orientation of an image. The image formed in a plane mirror has same height as the object, same image distance as object distance and orientation is just inverted, and none of these depend on the area of the mirror.

But

Area of the mirror do increases the view of sight. It actually depends on observer's location to see the image. The more the area of the mirror the more sight the observer can have.