.... in theory the same as not folded steel.
Yes, steel can be folded. This is a common practice in the production of "damascus" or pattern welded steel.
Nowhere. Stop believing movies are real. Folding modern steel doesn't make it better, anyway. 16th-century steel sucked and it was folded to make it suck less.
Folding steel accomplishes nothing, anymore.
Folded and Damascus steels are not stainless, so yes; if not maintained, will rust.
The number of times Damascus steel is folded can vary widely depending on the desired characteristics of the final blade. Traditionally, it could be folded anywhere from 5 to 50 times, with each fold multiplying the layers of steel and creating unique patterns. However, modern blacksmiths may choose to fold it more or fewer times based on specific techniques or desired results. Ultimately, the folding process enhances the steel's strength and aesthetic appeal.
A steel plate of that size would weigh approximately 368 pounds.
If it is 20 gage steel it would weigh about 450 pounds
Because they each weigh 300 pounds, they weigh the same, thus neither is heavier than the other.
Depends, of course, on the density of the steel.
Steel and stainless steel tend to weigh around the same, however, stainless steel can sometimes be a bit lighter.
It's a modern steel used for blades. It makes quite a nice, sharp, and durable blade, especially when folded on itself like damascus.
You cannot weigh an area, but you can weigh a volume... so, one cubic meter of stainless steel weighs 7480 - 8000 kg. See related link for the source.