Separate .h and .cpp files in template class implementation

I am trying to write a template class that can form classes depending on the <class> I pass. The problem is I cannot declare and define in the same .h file. In my project, the UTF tool can only work with the .cpp files (for code coverage, etc.). I have seen in a blog that they say “Add .cpp instead of .h”. Is this advisable?

Template.h

#ifndef TEMPLATE_H_
#define TEMPLATE_H_

template<class T>
class Template
{
public:
    T Add(T a,T b);
};

#endif /* TEMPLATE_H_ */

Template.cpp

#include "Template.h"

template<class T>
T Template<T>::Add(T a, T b)
{
    return a+b;
}

Main.cpp

#include "Template.cpp" //Is this a good practise? 
#include <iostream>

int main(int argc, char **argv) {
    Template<int> obj;
    std::cout<<obj.Add(3,4)<<std::endl;
}

If this is not advisable then how do I solve this issue? export?