First cleaned the surface rust on about 2/3 of the top.
Then, used steel wool to remove most of the corrosion.
Used a wax to protect and to make the surface slippery so that the wood will glide across the surface.
After the wax, it's buffed to make smooth and slippery.
Did the 2/3 that I'll be using to cut the legs to match the shape of the bottom of the bench.
Will do the other 1/3 later...
A couple of days later, did the rest of the top.
First used some cleaner to wipe down the rest of the top.
Started using steel wool to remove the rust.