It will weigh the same as when it was a liquid. Freezing a liquid simply slows the rate at which the molecules travel, it does not add or subtract anything at a molecular level. So a liquid weighs the same as before when it is frozen.
A depth is required to answer your question. The mass of the water will be one million tonnes per metre of depth.
A cubic foot of water weighs 62.4 pounds (7.48 gallons * 8.33 pounds).
5280 ft x 5280 ft x 5280 ft x 62.4 lbs per square ft = 9,185,152,204,800 lbs
A cubic inch of marble typically weighs around 0.31 pounds.
On average, a cubic meter of barley weighs around 600-700 kg.
a cubic ton
According to the US Geological Survey ... the oceans contain about 1,338,000,000 cubic kilometers of water. A cubic meterof water is 1000 kg, and a cubic kilometer has 1,000,000,000 of those, so the overall total mass is 1,338,000,000,000,000,000,000 kg, or 1.338 x 1021 kg.
One cubic centimeter of water would fit into that cup, and it would weigh 1 gram.
2.5 cubic feet of water weighs about: 156 pounds.
I once had a book about the ocean that claimed that there was 38 pounds of gold in one cubic mile of seawater. You could figure 1 cubic kilometer from here but you are still left with the validity of the claim of the book and even worse, my memory of that book. Still, something to play with.
A depth is required to answer your question. The mass of the water will be one million tonnes per metre of depth.
It takes up a cubic kilometer of space.
71400 cubic inches of water weighs approx 11466 Newtons.
that is 25,133 kilograms
The weight of 2.25 cubic feet of water is approx 4495 pounds-force (lbf).
Depends on the size of the aquarium. Water weights 10 pounds per gallon.
The weight of any volume of water will depend on the gravitational force acting upon it. 57 cubic feet of water would weigh nothing in a spaceship, for example.