The question as stated makes no sense.
a cubic foot is a measure of volume;
a tonne is a measure of weight.
The two are related by density = weight ÷ volume
=> volume = weight ÷ density
So the number of cubic feet (an imperial measure) in 1 tonne (a metric measure) all depends upon the density of the substance weighing 1 tonne - Mercury is many times more dense than Hydrogen and so 1 tonne of Mercury will be much smaller in cubic feet than 1 tonne of Hydrogen.
One ton of granite is equivalent to approximately 36 cubic feet.
About One
There is no such thing as a "cubic ton". There is the ton as a unit of mass (1 ton = 1000 kg), and there is the cubic meter, a unit of volume.
"Cubic ton" doesn't make sense. A ton (or "metric ton", to distinguish it from the non-metric ton) has 1000 kilograms.
One ton is defined as 2,000 pounds. There is no such unit as the "cubic pound".
5280 maximum
It depends on the density of that heavy ton.For example if the density is 100 ton per meter cube, then one tone will have 0.01 cubic meter.
One metric ton of plain water has a volume of about 35.32 cubic feet.
A ton is a measure of weight, not volume, and as such, there IS no "cubic" ton. In US measurement, a ton of water (2000 lbs) would be about 239.65 gallons.
my dog
It depends on the material being measured. For example, one metric ton of water is equal to one cubic meter, but for other materials like sand or gravel, the conversion may vary.
At 100 pounds per cubic foot, that is 20 cubic feet per ton = 0.57 cubic meters