Question

What are the dimensions of the universe and what would be the total area, mass and/or radius, etc of the whole universe combined?

Answer 1

We don’t know yet.

Explanation:

The “observable universe” gets larger as our instruments get better. The numbers keep changing almost yearly. It is even worse for a calculation of mass. Here are a few good websites to read about the uncertainties and further research:
http://www.space.com/24073-how-big-is-the-universe.html

http://www.pbs.org/wgbh/nova/space/how-big-universe.html

https://www.nasa.gov/audience/foreducators/5-8/features/F_How_Big_is_Our_Universe.html